Electronic cigarette



FIG. 1 is a front elevation view of an electronic cigarette showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front perspective view thereof;

FIG. 8 is a rear perspective view thereof;

FIG. 9 is a top front perspective view thereof; and,

FIG. 10 is a bottom rear perspective view thereof.

The broken lines in the drawing depict parts of the electronic cigarette that form no part of the claimed design. 

CLAIM The ornamental design for an electronic cigarette, as shown and described. 